za empen



(No Model.) 2 Sheets-Sheet 1,

r. KAEMPEN, Jr. HEATING STOVE.

No. 551,640 Pgtnted Dec. 17, 1895.

2 Sheets -Sheet 2.

No Model.) 7

' KAEMPEmJr.

. HEATING STOVE.

Patented Dec. 17; 1895;

Wendi? 7 gm '5,

Nrren STAT S ATENT ECEQ FOLKEBT KAEMPEN, JR. OF QUINCY, ILLINOIS,ASSIGNOR TO THE GEM CITY STOVE MANUFACTURING COMPANY, OF SAME PLACE.

H EATING-STOVE.

SPECIFICATION forming part of Letters Patent No. 551 ,640, datedDecember 17, 1895.. x

Applio ation filed June 27,1895x Serial No. 554,237. (No model.)

To all whom it may concern:

Be it known that I, FOLKERT KAEMPEN, J11, a citizen of ,the UnitedStates, residing at Quincy, in the county of Adams and State ofIllinois, have invented new and useful Improvements in Heating-Stoves,of which the following is a specification.

This invention relates to heating-stoves, and has for its object toprovide a heatingsto-ve adapted for burning'either hard or soft coal andin which the smoke and other products of combustion are carried into anauxiliary combustion-chamber and there thoroughly consumed, to augmentthe heating capacity of the stove and effect an economy in theconsumption of fuel, and, finally, to improve the construction andefficiency of this type of stoves generally.

To these ends my invention consists in the features and in theconstruction or arrangement of parts hereinafter described, and pointedout in the claims following the description, reference being had to theaccompanying drawings, forming a part of this specification, wherein IFigure 1 is a vertical central section of my improved stove. Fig. 2 is atop plan view of the stove-base. Fig. 3 is a similar view of the doublefire-pot. Fig. 4 is a top plan view taken on the line 4 4 of Fig. 1.Fig. 5 is a detail perspective view of'the hot-air ducts. Fig. 6 is avertical central section of a stove, showing the invention applied to adouble heater. Fig. 7 is a top plan view taken on the line 7 7 of Fig.6, and Fig. 8 is a'detail view of the hot-air ducts.

Referring to the drawings, the numeral 1 indicates the base of the stovesuitably supported upon legs, as usual, and provided with an ash-chamber2'and at its rear with an airinlet chamber 3 open at its top and bottom.Arranged in the front wall of the base 1 is a draft-opening at providedwith draft-controlling means of any usual or desired construction, andwhich'I denominate a blast-draft.

Secured to the upperportion of the base 1 immediately above theash-chamber 2 is a grate 5. Supported upon and suitably secured to thebase 1 is a double fire-pot 6 comprising a front fuel-chamber 7 and arear aux- .chamber iliary combustion-chamber 8, said chambers being openat both top and bottom, the fuelchamber 7 resting immediately above thegrate 5, while the bottom of the auxiliary combustion-chamber rests overthe air-inlet ble fire-pot 6 and over the fuel-chamber 7 is acylindrical or other suitably-shaped drum or casing 9, provided at itsfront with a draftopening 10, provided with any suitabledraftcontrolling device, and which I denominate a combustion-draft.Arranged in the drum or casing 9 is a magazine 11, which at its upperend is closed by a lid or cover 12, as usual. Arranged within theauxiliary combustionchamber- 8 are two hot-air ducts 13, said ductscommunicating with each other at their lower ends and having a commoninlet 11. The said ducts are fitted in the lower open end of theauxiliary combustion-chamber 8, the inlet 14 registering with the upperend of the airinlet chamber 3 in the base 1. The ducts 13 extend upthrough the auxiliary combustionchamber, and at their upper endscommunicate with two grated openings 15, formed in a cover 16 fittedover the upper end of said auxiliary combustion chamber. The said cover16 is provided with a centrally-arranged opening 17, constituting asmoke-exit for the auxiliary combustion-chamber, and over said openingis arranged a smoke-exit flue 18, provided with a check-draft 19, and atits upper end is adapted to be connected to a stovepipe.

The operation of the stove constructed as above described is as follows\Vhen the stove is charged with fuel the surface of the latter will bein a plane slightly below the combustion-draft 10. Air is admittedbeneath the grate 5 through the blast-draft 4 and passes up through theburning fuel, and at the same time air is also admitted above the fuelthrough the combustion-draft 10, forcing the flames, smoke and productsof combustion backward and into the auxiliary combustionchamber, wherethe smoke and gases are burned and pass off through the smoke-exit flue18. The heat, flames and burning gases in their passage into and throughthe auxiliary combustion-chamber pass between and Seated upon the top ofthe douupon both sides of the airducts 123, and the cold air drawn upthrough the air-inlet chamber 3 in the stove'base passes up through saidair-ducts, wherein it is heated to a high temperature and dischargedthrough the openi n 15 into the room.

liy means of the cheek-draft 19 air may be admitted for additionalcombustion if found desirable or as circumstances may prove advisable,owing to the different draft of ditl'erent lines, or for other reasons.

In a stove such as described soft coal may be burned equally as well ashard coal, for not enough heat is generated in the heater containing themagazine to cause the soft coal to coke, the greater portion of the heatbeinggenerated in the auxiliary comlmstion-cliamber.

Although I have shown and described the stove as being a magazine-stove,it will. be manifest that the magazine may be omitted, converting thestove into a surface burner.

llymeans ot' the double ii repot, comprising the i'uelchamber and theauxiliary heatingchamber, and by admitting air through the fuel frombeneath and over the fuel from above, the greater portion of the heat isgenerated in said auxiliary combustion-chantber, and the smoke andproducts of combustion are not only consumed, but aid in inereasingtheheating capacity of the stove.

l'nliigs. (l to 8 I have illustrated myinyention as applied to a doubleheater or stove designed for conveyin a portion oi? the heat to anotherroom or portion of the building.

The principle of operation in this stove is precisely the same as thatbefore described, the construction of the hotair ducts only beingslightly altered. As shown, the hot-air du ets l 3" are bent forwardslight] y into the forward combust:ion-chamber and at their upper endsare united to form a single duct 13, that passes up through the stovedrum or casin and passes out through the upper portion thereof, where itconnected to one end of a hotair pipe 20 that leads to another room orto another portion of the building. lhe hotair pipe 20 at its upper endis provided with a register-valve i l, by means of which the amount ofhot air permitted to escape into the room may be regulated. The openings15, heretofore described, are closed by any suitable or desired means,when the stove is used as a double heater, to prevent the escape ofproducts of combustion into the room.

As before stated, the operation of the double heater is precisely thesame as that first described, and from said. description will be readilyunderstood.

llaving described my invention, what I claim is 1. In a heating stove,the combination with a base, of a double ii re pot comprising a fuelchamber and an auxiliary combustion chamber arranged one in front of theother and communicating with each other, hot air ducts arranged in saidauxiliary combustion chamher and communicating at their opposite endswith the atmosphere outside the stove,a smoke exit for said auxiliarycombustion chamber, and a stove drum or casing arranged oyerthe fuelchamber, whereby the smoke and gases generated in. the fuel chamber passinto the auxiliary combustion chamber and are there consumed and heatthe air in its passage through the hot air ducts, substantially asdescribed.

'In a heating stove, the combination with a base, of a double ii re potcomprising a fuel chamber and an auxiliary combustion chamber arrangedone in front of the other and communicating with each other, hot airducts arranged in said auxiliarycombustion chambe r and comm unicatingat their opposite ends with the atmosphere outside the store, a smokeexit for said auxiliary combustion chamber, a stove drum or casingarranged over the fuel chamber, a draft opening arranged beneath theiuel chamber, and a d raftopening arranged above the fuel level in saidcha1nl er,whereby a downward d raft is caused. to pass over the fuelinto the auxiliary combustion chamber, substantially as described andfor the purpose specified.

In a heating stove, the combination with a base having an ash chamberand an air inlet chamber, of a double lire pot Sll1')])()1ft(:(l.thereon and comprising a fuel chamber arranged over said ash chamber andan auxiliary combustion chamber arranged over the air inlet chamber, thesaid fuel chamber and auxiliary combustion chamber communicating witheach other, hot air ducts arranged in said auxiliarycombustion chamberand commui'iicating at their lower ends with said air inlet chamber andat their opposite ends with the atmosphere outside the store, a smokeexit for said auxiliary combustion chamber, and a stove drum or casingarranged over the fuel chamber whereb the smoke and noducts ofcombustion pass from the fuel chamber into the auxiliary COlIllJTlStlOIlchamber and are there consumed and heat the air in its passage upthrough the hot air ducts, substantially as described.

4?. In aheating stove, the combination with a base having an ash chamberand an air inlet chamber, of a double lire pot supported thereon andcomprising afuel chamber arranged over said ash chamber and an auxiliarycombustion chamber arranged over the air inlet chamber, said fuelchamber and auxiliary combustion chamber communicating with each otherwhereby the smoke and. products of comlmstion pass directly from thefuel chamber into the auxiliary combustion chamber and are thereconsumed,hot air duct s arranged in said auxiliary comb stion chamberand communicating at their lower ends with said air inlet chamber and attheir upper ends with the atmosphere outside the store, a smoke exit forsaid auxiliary combustion chamber, a check draft in said smoke exit, astove drum or casing arranged over the fuel chamber, a draft openingbelow the fuel chamber, and a draft opening arranged above said chamber,substantially as described.

55. In a heating stove, the combination with a base having an ashchamber and an air inlet chamber, of a double fire pot supported thereonand comprising a fuel chamber arranged over said ash chamber and anauxiliary combustion chamber arranged over the air inlet chamber, thefuel chamber and auxiliary combustion chamber communicating with eachother, two air ducts united at their bottom to form a common inletseated over the air inlet chamber Within the auxiliary combustionchamber and communicating at their lVitnesses:

H. C. SPRICK, N. A. GRIMMER, Jr.

